Propelling apparatus.



v. G. ANDERSON.

PROPELLING APPARATUS.

I APPLICATJ ON FILED AUG. 19. I916; v

' Patented Oct. 9,1917.

' 3 Sl'lEET$--S NEET I.

v. G. wnan'sow; I PROPELLING APPARATUS.

APPLICATION FILED AUGJQI 19l6- Patented Oct. 9, 1917.

3 SHEETS-SHEET 2- v. G. ANDERSON.

PROPELLING APPARATUS.

APPLICATION FILED AUG-9,1916.

1,242,635. Patented. 001;. 9,1917.

3 SHEETSSHEET 3.

rmsesemg be miner-RIVER- FALLS, MINNESOTA, Assreivonwro Etenne-R101;"oanusrnmor CHICAGO, innnvorsj "rnoiEnLI ne APPARATIifS.

r qei w a ent. iPatentedlficta-f),1917.

[A licat n fl ed August 19, 191a Serial m naret."

To all whom z'tmay concerns Be. it knownthat I, TIN (J NTQG- iXN-DER-soN, a citizen of the, United .StatesofAmerica, and resident of-ThiefRiverFall'giIienquire moving ahead from. time totiine' during theoperation thereof. .7

Generally stated, the object. of my invention is to provide an improvedapparatus of this kind having means .for raising the ein cavator orother .heavystructure, 'and'fin- \vhich the further operationofthelifting means,,.after the weight ofztheexcavator. or other structurehas. been temporar ly transferred fromits ownrunway's. or othersupporting means to a traveling support, 1 will then shift the excavatoror. other structure forward. I

It is also an object toprovidecertain details and features of.construction and I combinationstencling to increase the gen ral showninFi-g. 1.

efliciency and desirability ofa propelling ap paratus' of thisparticular; character.

To the foregoing and other useful ends,

my invention consists in matters hereinafter set forth and claimed.

In the accompanyingdrawings Figure 1 is a plan -of an..excavator bodyprovided with a propelling apparatus embodyingthe principlesofmyinvention. Fig. 2 is aside elevation of the structure Fig. 3 is atransverse section on line 3-8 Fig. 4 is an enlargedside elevation of aportion oftsaid-apparatus. ,p o

Fig. 5 is a plan of the device shown in Fig. :4;

As thus illustrated, the excavator body A may be .iof anyvsuitable,known or aprproved character, and is provided with-sup.

porting runners or shoes a, at the four corners thereof, wherebyit isadapted to rest on the ground during the excavating op- 'eration. Itwill be understood that the eX- cavating apparatus (not shown) can be ofany suitable character.

Between the side beams l and 2, at each Side. of the body A, asupporting n me-n is disposed upright and provided Witlr-as'hoe- Z)which rests onthe surface of ground; A smallframe or cage 61S alsoprovided at each side of the excavator body, in position to embrace theinclined upright 3 of the frame B, and isfprovided' with" rollers 4!;5,6

and 7.to engage thebody frame A, in a manner that will be readilyunderstood. Each frame Chas a small; triangular element X which ispivotedon the axis ,of-the rollers 7 and which is provided'with rollers,w to bear against the front side of theup.'

rollerst and 5 are on the axeszof. the sheaves 11 andlO, respectively,willfbe seen, and support the carrier C on the body, which permitsfreedomof motion and prevents binding of the relatively movable parts.The ca'ble D has its opposite ends secured at 12'to the-frames or cagesC, and then extends upwarduover the sheaves 9, downward around thesheaves 10, upward and over the sheaves, 8, and thenrdownward. and underthe sheavesjll', thus forming a powerful lifting apparatus. The saidcable extends around, the sheaves 13 andi l f on e the rear endof the.excavator bo'dy A, a ndj the middle portion. of this cableextendsfaround'the pulley E, which latter is connected WithQthe pulley Faround. which travels "the cable 7 of the winding idrum G, therotherendof this cable fibeing attached to the eXCavator body at .15,"whjereby the operation-of; said drum in the direction to wind up the cable fcauses a, tigl.lt ningc of th able D. and a Q neaaeea to the shoes I) ofthe supports B, and a continued operation of the cable D exerts aforward pull on' the rear end of the excavator body-frame A, causing itto shift forward on the rollers 6 and 7, in a manner that will bereadily understood. Then the bodyframe A is lowered to the ground. I

The means for pulling the frames B forward is as follows: The cable Hhas its opposite ends attached at h to the bases of the frames B, andsaid cable travels around the sheaves 16, 17 and 18 on the front end ofthe body-frame A, the middle portion of this cable being attached at 19to the shank of the pulley 20, which latter engages the cable I whichhas one end portion wound on the drum 6 and its other end attached at 21to the excavator body-frame. With this arrangement, and by operating thedrum 2' after the excavator body-frame is lowered to the ground, thecable H will be tightened to pull the frames 1% forward on the ground.During this operation, the frames or cages C slide forward on the sidesof the excavator body-frame. After this is done, the lifting apparatusis again ready for operation, so that the body-frame A. can be givenanother movement forward. Thus the frame A. and the frames B take turns,so to speak, in moving forward, the frame A moving forward while theweight is, on the frames B, and the said frames B being shifted forwardwhen the weight is on the frame A, thus accomplishing the desiredmovement forward from time to time during the excavating operation.

I do not limit myself to the exact construc tion shown and described.

' What I claim as my invention is:

1. In a propelling apparatus for intermittently shifting a heavy bodyalong the ground, a frame adapted to rest on the ground, a carriermovable up and down on said frame, rollers on said carrier to supportsaid body, sheaves on said carrier, sheaves on said frame, a cableengaging all of said sheaves, means to secure one end of said cable tothe front portion of said carrier, so that a pull on said cable willraise said carrier, and means on said body to operate said cable andthereby pull the body forward on said carrier.

2. The said structure, as specified by claim 1, having rollers tovsupport the carrier on said body, in which means are provided forpermitting said carrier to tilt with the body without causing the cableto bind on said frame.

3. The said structure,-as specified in claim 1, having rollersto supportthe carrier on said body, in which said frame is inclined forward, andin which said cable has the 'upright portions thereof also inclined forward. v 7

4. The said structure, as specified in claim 1, in which the front endof said carrier has a pivoted element to engage said frame.

5. In a propelling apparatus for intermittently shifting a heavy bodyalong the ground, a frame adapted to rest on the ground, a carriermovable up and down on said frame, rollers on said carrier to supportsaid body, sheaves on said carrier, sheaves on said frame, a cableengaging all of-said sheaves, so that a pull on said cable will raisesaid carrier, means on said body to operate said cable and thereby pullthe body forward on said carrier, and means for permitting said carrierto tilt with the body without causing the cable to bind on said frame.

6. In a propelling apparatus for intermittently shifting a heavy bodyalong the ground, a frame adapted to rest on the ground, a carriermovable up and down on said frame, rollers on said carrier to supportsaid body, sheaves on said carrier, rollers on the axes of said sheavesto support the carrier on said body, sheaves on said frame, a cableengaging all of said sheaves, so that a pull on said cable will raisesaid carrier, and means on said body to operate said cable and therebypull the body forward on said carrier, said frame being inclined,forward, and said cable having the upright portions thereof alsoinclined forward.

.7. In a propelling apparatus for intermittently shifting a heavy bodyalong the ground, a frame adapted to rest on the ground, a carriermovable up and down on said frame, rollers on said carrier to supportsaid body, sheaves on said carrier, sheaves on said frame, a cableengaging all of said sheaves, so that a pull on said cable will raisesaid carrier, and means on said body to operate said cable and therebypull the body forward on said carrier, the front end of said carrierhaving a pivoted element to engage said frame.

Signed by me at Chicago, Illinois, this 31st day of July, 1916.

VINCENT Gr. ANDERSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, I). C.

